Enzymatic enantioselective aldol reactions of isatin derivatives with cyclic ketones under solvent-free conditions
作者:Zhi-Qiang Liu、Zi-Wei Xiang、Zhou Shen、Qi Wu、Xian-Fu Lin
DOI:10.1016/j.biochi.2014.01.006
日期:2014.6
Nuclease p1 from Penicillium citrinum was observed to directly catalyze the asymmetric aldol reactions between isatin derivatives and cyclic ketones with high isolated yields (up to 95%) and moderate to good stereoselectivity (dr up to >99/1, ee up to 82%). A series of reaction conditions were investigated in detail, and the addition of deionized water had a big influence upon the enzyme activity.
观察到来自青霉青霉的核酸酶p1以高分离产率(高达95%)和中等至良好的立体选择性(dr高达> 99/1,ee高达82%)直接催化靛红衍生物与环状酮之间的不对称羟醛反应。 。详细研究了一系列反应条件,加入去离子水对酶的活性影响很大。这种生物催化混杂的情况不仅扩大了核酸酶p1在有机合成中新化学转化的适用性,而且提供了在药物化学中构建药物活性化合物的潜在有价值的方法。